Another upcoming champ release, another request to temporarily disable the new champ in ranked.
Very low odds she'll be balanced, either over or under the mark, creating poor quality matches.
Very low odds the player on her will have any experience with her, creating poor quality matches.
Very high odds of creating fights in champ select, increasing toxicity.
Very high odds she'll just be banned every match, making the player feel bad about having to waste their ban because Riot chooses to disrespect the quality of ranked matches for the weeks directly after the champ's release.